Home / 31,658.06-43,686.35-17,315.03

Finding the Fourth Proportional to 31,658.06, 43,686.35 and 17,315.03

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Solution

The fourth proportional to 31,658.06, 43,686.35 and 17,315.03 is: 23,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,658.06 : 43,686.35 = 17,315.03 : x
  2. Step 2: Convert to fraction form
    31,658.06/43,686.35 = 17,315.03/x
  3. Step 3: Cross multiply
    31,658.06x = 43,686.35 × 17,315.03
  4. Step 4: Simplify right side
    31,658.06x = 756,430,155.83
  5. Step 5: Solve for x
    x = 756,430,155.83/31,658.06
  6. Step 6: Final answer
    x = 23,893.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.